Machine for operating upon articles assembled from adhesive materials



M. S. CATE June 25, 1935.

MACHINE FOR OPERATING UPON ARTICLES ASSEMBLED FROM ADHESIVE MATERIALS Filed Aug'. 8, 1934 Patented June 25, 1935 UNITED STATES PATENT OFFICE MACHINE FOR OPERATING UPON ARTICLES ASSEMBLED FROM ADHESIVE MATERIALS Malcolm S. Cate, Watertown, Mass, assignor to Hood Rubber Company,

Inc., Watertown,

This invention relates to machines for operating upon articles assembled from adhesive material and it is especially useful in the manufacture of shoes or other articles made from adhesive 5 layers of material such as rubber or rubberized fabric.

The principal objects of the invention are to provide a simple mechanism for forcing the plies into intimate adhesive relation, to provide in- 10 creased adhesion of the plies, to conserve power,

and to relieve the operator.

Other objects will appear from the following description and the accompanying drawing.

Of the drawing:

Fig. l is a perspective view of the machine in its preferred form.

Fig. 2 is a vertical sectional view of the principal parts of the device showing a shoe in position to be operated upon, parts being broken away.

Fig. 3 is a similar View showing the hammering elements partially advanced.

Fig. 4 is a similar view showing the hammering elements further advanced and contacting with the shoe.

Referring to the drawing, the numeral m designates the frame of the machine in which a shaft I is horizontally journaled. A pulley I2 is fixed to one end of the shaft and is driven by a belt I 3 from an electric motor (not shown). A disc l4 fixed to the opposite end of the shaft carries an eccentrically disposed antifriction roller l5. A slide 16 is slidably mounted on the frame it! and has a depending slotted arm I! which extends through a clearance opening l8 of the frame and engages the roller I5 whereby when the shaft H is rotated, the slide is given a reciprocating movement.

In the preferred form of the device, a plurality of superimposed hammer elements 19 are loosely retained by the slide l6 so as to float thereon, preferably in stacked relation, the slide l6 and the hammer elements being retained axially of the shaft and vertically by a pair of V-shaped guides 20, 2|. Each of the hammer elements is slotted as at 22 to engage a vertically disposed pin 23 fixed to the slide I6. The arrangement is such that lost motion is provided between each hammer element and the pin 23 and upon reciprocation of the slide 16, the hammer elements will be projected endwise beyond the throw of the eccentric disc by their inertia.

A forwardly extending arm 24 of the stationary frame I0 supports a table 25, preferably a slightly convexed rotatable disc, upon which the article to be operated upon may be supported and manipulated by the operator. A rock shaft 26 is journaled horizontally through the arm and has fixed thereto a pair of spaced vertically disposed 5 pins on which are mounted rollers 21. A depending arm 28 also fixed to the rock shaft is pivotally connected to a link 29 which engages an arm 36 of a bracket pivoted at 3! to the arm 24. Bracket 30 carries a mercury switch 32 which controls the supply of electricity to the motor which drives the belt 13. The arrangement is such that when an article such as a shoe 33 is held on the table 25 and pressed toward the hammer elements, the shaft 26 is rotated by the shoe. pressing against the rollers 21 until the mercury switch is closed, starting the motor. When the article is Withdrawn the switch is opened by a coil spring 34, one end of which is attached to the frame 24 and the other end to the arm 28, and the motor is stopped, thereby conserving the electric power.

The hammer elements l9 are preferably made of different extent from the slotted portion 22 forward so as to approximate the contour of the article with which they are to contact. Their hammer faces are preferably rounded as seen in Fig. 1.

The machine is used. for hammering down strips of rubber or other material which has been adhesively applied to a shoe or other object. In use the lasted shoe 33 is placed on the table 25 over which it is guided by the operator who holds the shoe against the rollers 21. The reciprocation of the slide l6 propels the hammer elements against the shoe in a rapid succession of blows while the shoe is advanced over the table by the operator. The hammering knits the rubber material of the overlying plies into more intimate union.

I claim: 40

1. Apparatus for operating upon articles assembled from adhesive materials, said apparatus comprising a support over which the article may be manipulated by the operator, a reciprocating carriage adjacent thereto, hammer means loosely retained by said carriage in position to be projected against the article as the article is moved upon the support, means for driving said carriage, and means controlled by presence of an article on the support for automatically regulating said driving means.

2. Apparatus for operating upon articles assembled from adhesive materials, said apparatus comprising a support over which the article may be manipulated by the operator, a reciprocating carriage adjacent thereto, a plurality of hammer elements retained by said carriage in floating engagement therewith, and means for driving said carriage to propel said hammer elements against 5 the article.

3. Apparatus for operating upon articles assembled from adhesive materials as defined by claim 2, in which the hammer elements are formed.

on their faces to approximate the contour of the article.

4. Apparatus for operating upon articles assembled from adhesive materials as defined by claim 2, in which the hammer elements are stacked in superimposed relation.

MALCOLM S. CATE. 

